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图学学报

图学学报

• 专论：第12届中国计算机图形学大会 (CHINAGRAPH 广州) • 上一篇    下一篇

基于变形图的谱姿态迁移

  

  1. 1. 广西大学计算机与电子信息学院，广西 南宁 530004； 
    2. 广西多媒体通信与网络技术重点实验室，广西 南宁 530004； 
    3. 华南理工大学计算机科学与工程学院，广东 广州 510006
  • 出版日期:2019-04-30 发布日期:2019-05-10
  • 基金资助:
    国家自然科学基金项目(61762007)；广西自然科学基金项目(2017GXNSFAA198269，2017GXNSFAA198267)；广西教育厅项目(2017KY0026， KY2016YB026)；广东省自然科学基金项目(2017A030313347)

Spectral Pose Transfer Based on Deformation Graph

  1. 1. School of Computer Electronics and Information, Guangxi University, Nanning Guangxi 530004, China;  
    2. Guangxi Key Laboratory of Multimedia Communications Network Technology, Nanning Guangxi 530004, China;  
    3. School of Computer Science and Engineering, South China University of Technology, Guangzhou Guangdong 510006, China
  • Online:2019-04-30 Published:2019-05-10

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摘要： 为减低谱姿态迁移结果受几何代理 Cage 的影响程度，提出基于变形图的谱姿态迁 移方法。首先，利用优化二次误差度量方法简化源网格得到变形图，将源网格顶点以测地距离 为权重用变形图顶点表示，强制源网格顶点与基于耦合准调和基的姿态迁移结果尽可能相同， 同时保持变形图的拉普拉斯坐标，获得低频姿态迁移结果，并利用嵌入变形算法对此结果进行 优化；然后，通过观察找到次级姿态学习不充分的局部网格，分割出局部子网格，对这些子网 格使用低频姿态迁移方法，可以学习到次级姿态。实验结果表明，在一定程度上降低了几何代 理的影响，有效地提高了谱姿态迁移结果。

关键词: 姿态迁移, 网格简化, 嵌入变形, 耦合准调和基

Abstract: Spectral pose transfer based on deformation graph is proposed to reduce the influence of the geometry agent Cage. At the beginning, the deformation graph is obtained to optimize the quadric error metric algorithm so as to simplify the source mesh, and then the deformation graph vertices are used to represent the source mesh vertices through the geodesic distance. The source mesh vertices are forced to be identical as much as possible with the results of pose transfer based on the coupled quasi-harmonic basis, and the same time, the Laplacian coordinates of the deformation graph are kept and then the result of the low frequency pose transfer can be obtained on the basis of optimizing the related result by applying the embedded deformation algorithm. After that, the local meshes of insufficient secondary pose study are found by observation and then are divided into the sub-meshes. The secondary pose is transferred by using the low frequency pose transfer method on these sub-meshes. Experimental results show that it can reduce the influence of geometry agent to some extent, and can also effectively improve the pose transfer.

Key words: pose transfer, mesh simplification, embedded deformation, coupled quasi-harmonic bases